Ive got one of these, but the screen smoothing killed it for me. (esp when you cant even turn it off). the board ITSELF though is very impressive. 8 core 1.5ghz with 6 core GPU.. pretty nice. and the board doesa have VGA. I however couldent live with that stupid smoothing effect.. blew the os away and installed LAKKA (s912) the board itself is a s913 board, but is close enough and works great. id say compared to having a Rasberry Pi 3b+, this board is about 3 times as fast, and you can tell as its nice as smooth with no frameskips in the basic games.
at any rate, great board, rubbish OS as it wont let you run scanlines nor turn any smoothing effect off..
Ive got mine hooked up via VGA, and its crips.
I couldent get the GPIO port working, but just ran a powered USB expander board.